Stadium: Court 7 Round: 62 Ground: Clay
| ITF M15 Novi Sad | 2021/07/25 12:00 | Matic Spec v Daniil Savelev | 6-1,6-3 |
| ITF M15 Prijedor | 2021/05/09 12:30 | Matic Spec v Luka Miklavcic | 3-6,6-3,8-10 |
| ITF M15 St Petersburg | 2021/04/17 09:45 | Matic Spec v Yanki Erel | 6-7,2-6 |
| ITF M15 St Petersburg | 2021/04/16 07:55 | Matic Spec v Alexey Zakharov | 6-2,6-4 |
| ITF M15 St Petersburg | 2021/04/15 07:00 | Jakub Paul v Matic Spec | 6-7,6-4,3-6 |
| ITF M15 St Petersburg | 2021/04/14 09:15 | Matic Spec v Alafia Ayeni | 6-3,6-4 |
| ITF M15 St Petersburg | 2021/04/12 10:15 | Matic Spec v Daniel Ibragimov | 6-1,6-1 |
| ITF M15 St Petersburg Qual | 2021/04/11 07:00 | Matic Spec v Maksim Starostin | 6-3,6-2 |
| ITF M15 Novi Sad | 2021/07/26 10:30 | Aleksandar Tomas v Koray Kirci | 4-6,2-6 |
| ITF M15 Novi Sad | 2021/07/25 15:00 | Luka Vukovic v Koray Kirci | 3-6,4-6 |
| ITF M15 Antalya | 2021/04/28 10:00 | Jacopo Berrettini v Koray Kirci | 6-2,6-0 |
| ITF M15 Antalya | 2021/04/27 07:00 | Michalis Sakellaridis v Koray Kirci | 1-6,3-6 |
| ITF M15 Antalya | 2021/04/26 09:00 | Louroi Martinez v Koray Kirci | 6-7,3-6 |
| ITF M15 Antalya | 2021/04/25 07:00 | Mirko Lagasio v Koray Kirci | 2-6,6-7 |
| ITF M15 Antalya | 2021/04/20 08:30 | Koray Kirci v Christopher Heyman | 1-6,1-6 |
| ITF M15 Antalya | 2021/03/30 06:45 | Koray Kirci v Seong Chan Hong | 1-6,1-6 |